US4547290A - Process for solidification of strongly acidic or akaline liquid wastes - Google Patents

Process for solidification of strongly acidic or akaline liquid wastes Download PDF

Info

Publication number: US4547290A
Authority: US; United States
Prior art keywords: clay; waste; accordance; wastes; acidic
Prior art date: 1983-05-03
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Lifetime

Application number

US06/606,991

Other languages

English (en)

Inventor

Philippe Pichat

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Individual

Original Assignee

Individual

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1983-05-03

Filing date

1984-05-02

Publication date

1985-10-15

1984-05-02 Application filed by Individual filed Critical Individual

1985-10-15 Application granted granted Critical

1985-10-15 Publication of US4547290A publication Critical patent/US4547290A/en

2004-05-02 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 28
230000002378 acidificating effect Effects 0.000 title claims abstract description 27
238000007711 solidification Methods 0.000 title claims description 8
230000008023 solidification Effects 0.000 title claims description 8
239000010808 liquid waste Substances 0.000 title claims description 5
239000002699 waste material Substances 0.000 claims abstract description 93
239000004927 clay Substances 0.000 claims abstract description 60
239000011230 binding agent Substances 0.000 claims abstract description 25
239000000203 mixture Substances 0.000 claims abstract description 17
235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 11
235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 11
239000004571 lime Substances 0.000 claims abstract description 11
239000011575 calcium Substances 0.000 claims abstract description 10
229910052791 calcium Inorganic materials 0.000 claims abstract description 9
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 8
239000000463 material Substances 0.000 claims abstract description 7
230000007935 neutral effect Effects 0.000 claims abstract description 5
238000002386 leaching Methods 0.000 claims description 14
ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 10
238000002156 mixing Methods 0.000 claims description 10
239000011398 Portland cement Substances 0.000 claims description 9
230000003472 neutralizing effect Effects 0.000 claims description 9
239000002893 slag Substances 0.000 claims description 8
239000004568 cement Substances 0.000 claims description 7
VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
239000010881 fly ash Substances 0.000 claims description 6
239000000292 calcium oxide Substances 0.000 claims description 5
235000012255 calcium oxide Nutrition 0.000 claims description 5
239000003795 chemical substances by application Substances 0.000 claims description 5
239000003245 coal Substances 0.000 claims description 5
239000011505 plaster Substances 0.000 claims description 5
-1 calcium aluminates Chemical class 0.000 claims description 3
239000003077 lignite Substances 0.000 claims description 3
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
235000012241 calcium silicate Nutrition 0.000 claims description 2
239000007788 liquid Substances 0.000 claims 4
AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims 1
239000000920 calcium hydroxide Substances 0.000 claims 1
229910001861 calcium hydroxide Inorganic materials 0.000 claims 1
239000007787 solid Substances 0.000 claims 1
238000003756 stirring Methods 0.000 abstract description 7
238000005065 mining Methods 0.000 abstract description 2
239000011701 zinc Substances 0.000 description 16
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
238000006386 neutralization reaction Methods 0.000 description 11
238000007792 addition Methods 0.000 description 7
238000006243 chemical reaction Methods 0.000 description 6
238000011282 treatment Methods 0.000 description 6
238000010521 absorption reaction Methods 0.000 description 5
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
238000004458 analytical method Methods 0.000 description 3
238000005341 cation exchange Methods 0.000 description 3
150000001768 cations Chemical class 0.000 description 3
QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical class OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 3
230000006835 compression Effects 0.000 description 3
238000007906 compression Methods 0.000 description 3
230000002349 favourable effect Effects 0.000 description 3
238000010438 heat treatment Methods 0.000 description 3
238000005259 measurement Methods 0.000 description 3
229910052901 montmorillonite Inorganic materials 0.000 description 3
239000002245 particle Substances 0.000 description 3
238000005554 pickling Methods 0.000 description 3
239000002994 raw material Substances 0.000 description 3
235000019355 sepiolite Nutrition 0.000 description 3
239000000126 substance Substances 0.000 description 3
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
239000004113 Sepiolite Substances 0.000 description 2
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
150000001450 anions Chemical class 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
229910001919 chlorite Inorganic materials 0.000 description 2
229910052619 chlorite group Inorganic materials 0.000 description 2
238000000975 co-precipitation Methods 0.000 description 2
239000011248 coating agent Substances 0.000 description 2
238000000576 coating method Methods 0.000 description 2
230000000536 complexating effect Effects 0.000 description 2
239000004567 concrete Substances 0.000 description 2
239000000470 constituent Substances 0.000 description 2
GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 2
239000006185 dispersion Substances 0.000 description 2
230000001747 exhibiting effect Effects 0.000 description 2
150000002500 ions Chemical class 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
239000002184 metal Substances 0.000 description 2
235000011837 pasties Nutrition 0.000 description 2
239000010453 quartz Substances 0.000 description 2
229910052624 sepiolite Inorganic materials 0.000 description 2
150000004760 silicates Chemical class 0.000 description 2
230000006641 stabilisation Effects 0.000 description 2
238000011105 stabilization Methods 0.000 description 2
235000019354 vermiculite Nutrition 0.000 description 2
229910052725 zinc Inorganic materials 0.000 description 2
CMVQZRLQEOAYSW-UHFFFAOYSA-N 1,2-dichloro-3-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC(Cl)=C1Cl CMVQZRLQEOAYSW-UHFFFAOYSA-N 0.000 description 1
UDHXJZHVNHGCEC-UHFFFAOYSA-N Chlorophacinone Chemical compound C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)C(=O)C1C(=O)C2=CC=CC=C2C1=O UDHXJZHVNHGCEC-UHFFFAOYSA-N 0.000 description 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
239000004115 Sodium Silicate Substances 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
239000002253 acid Substances 0.000 description 1
HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
150000004645 aluminates Chemical class 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
238000009835 boiling Methods 0.000 description 1
239000001569 carbon dioxide Substances 0.000 description 1
229910002092 carbon dioxide Inorganic materials 0.000 description 1
150000004649 carbonic acid derivatives Chemical class 0.000 description 1
125000002091 cationic group Chemical group 0.000 description 1
238000004140 cleaning Methods 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
230000007423 decrease Effects 0.000 description 1
239000002270 dispersing agent Substances 0.000 description 1
125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
239000007789 gas Substances 0.000 description 1
239000003673 groundwater Substances 0.000 description 1
239000010440 gypsum Substances 0.000 description 1
229910052602 gypsum Inorganic materials 0.000 description 1
239000008240 homogeneous mixture Substances 0.000 description 1
229930195733 hydrocarbon Natural products 0.000 description 1
150000002430 hydrocarbons Chemical class 0.000 description 1
150000004679 hydroxides Chemical class 0.000 description 1
229910052900 illite Inorganic materials 0.000 description 1
239000012535 impurity Substances 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
150000002632 lipids Chemical class 0.000 description 1
239000011777 magnesium Substances 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
239000010813 municipal solid waste Substances 0.000 description 1
239000011416 natural hydraulic lime Substances 0.000 description 1
229910017604 nitric acid Inorganic materials 0.000 description 1
VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 1
150000002894 organic compounds Chemical class 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
230000002093 peripheral effect Effects 0.000 description 1
238000001556 precipitation Methods 0.000 description 1
230000002285 radioactive effect Effects 0.000 description 1
230000035484 reaction time Effects 0.000 description 1
230000009257 reactivity Effects 0.000 description 1
239000000377 silicon dioxide Substances 0.000 description 1
239000002002 slurry Substances 0.000 description 1
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
229910052911 sodium silicate Inorganic materials 0.000 description 1
239000011343 solid material Substances 0.000 description 1
229910001220 stainless steel Inorganic materials 0.000 description 1
239000010935 stainless steel Substances 0.000 description 1
239000010959 steel Substances 0.000 description 1
238000004381 surface treatment Methods 0.000 description 1
239000000725 suspension Substances 0.000 description 1
239000011269 tar Substances 0.000 description 1
239000010455 vermiculite Substances 0.000 description 1
229910052902 vermiculite Inorganic materials 0.000 description 1
238000005406 washing Methods 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
- C04B2111/00784—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes for disposal only
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/918—Miscellaneous specific techniques
- Y10S210/919—Miscellaneous specific techniques using combined systems by merging parallel diverse waste systems

Definitions

This invention relates to the field of treatment of liquid wastes of various origins such as industrial, agricultural or municipal wastes. More particularly, it relates to a process making it possible to transform very acidic wastes, of a pH generally less than 2, or very basic and alkaline wastes, of a pH generally above 12, into solid materials having great stability in regard to external agents such as water and a great power for retaining polluting elements included in these wastes.
a clay material is dispersed in the waste (or vice versa) with stirring--in a first stage--at a temperature of 0° C. to 150° C., then, in particular in the case of acidic wastes, neutralization to a fairly neutral pH is performed, and then a hydraulic and/or calcium binder addition follows.
All types of fresh or dried clays can be used, such as pure clays (kaolinites, etc) or more generally mixtures belonging to the main mineralogical groups: montmorillonites, illites, smectites, chlorites, vermiculites, sepiolites, attapulgites, and which can contain various impurities such as hydroxides, metal carbonates, etc. It is particularly advantageous, on the cost level, to use various wastes of technical clays, quarry wastes and clay products from washing of materials.
the surface of the clay particles is increased under the influence particularly of the OH - ions because there is a formation in particular of soluble silicates and alkaline silicates.
the pH of the solution has a tendency to go down and the polluting elements of the waste are fixed on the inside and outside surfaces of the clays.
the lengths and times of contact during the first clay/waste reaction phase are obviously variable depending on the type of raw material and according to the parameters of temperature, stirring speed, and amounts of materials.
the reaction is immediate when magnesium clays (sepiolite, attapalgite types) are used, whereas it is longer, for example several hours, for other clays or clay wastes.
this first stage is performed at standard temperature and pressure, for example, between 15° and 30° C. but it is possible to operate down to 0° C. and less or, on the contrary, accelerate the reaction by heating.
the clay is dispersed in the waste (or vice versa in certain cases) preferably with vigorous stirring, for example, with a stirring system providing at least 1000 rpm to obtain a peripheral linear speed of the particles on the order of 10 to 15 meters/second.
the still acidic pasty mass is neutralized to the vicinity of neutrality.
This neutralization can be performed with such products as lime (quick or slaked), ground limestone, calcium carbonate base wastes, calcium silicates and/or aluminates.
This phase is accompanied by various precipitation and absorption reactions, taking into account the considerable specific surfaces developed.
Neutralization is not essential when the waste to be treated is of the strongly basic type. But it is advantageous in such a case to perform neutralization with an acidic waste or again a mixture of acidic waste and clay such as, for example, the one or ones mentioned above. Also, neutralization of the acidic wastes can also be performed with a mixture of basic waste and clay.
the pasty mass has added to it a hydraulic or calcium binder, with stirring.
a hydraulic or calcium binder for this purpose, there can be cited in a nonlimiting way: quicklime, residues of production of quicklime or acetylene, natural hydraulic lime, Portland cement, blast-furnace and steel-furnace slags, fly ash from burning coal, lignite, garbage, plasters, etc.
This addition does not cause a simple coating of the polluting elements but gives rise to the phenomena of absorption, chemisorption, complexing and coprecipitation favorable to stabilization of the polluting elements.
This binder addition can be performed for example, among other means, by a plowshare type stirrer on the inside of a horizontal concrete mixer or again in a road type mixer operating continuously or intermittently.
the amounts of lime or lime donor used in the process are advantageously selected so that there is a ratio of clay/Ca (OH) 2 ⁇ 4 and able to go up to 25.
Evacuation and transport of the treated waste are performed, for example, with a KOR 1 000 type piston pump which is fed by a booster mixer. Transport of the waste is preferably done during setting and before petrification; it is preferable that the setting mass be compacted or compressed before being put in the final disposal site.
the process according to the invention makes it possible to treat all types of liquid wastes whether strong acidic (often pH ⁇ 2) or very basic and alkaline (pH>12) and of any origin: industrial, mining, urban and of an inorganic, organic or biological nature. They can contain various cations and/or anions or again organic compounds such as lipids, glucides, various hydrocarbons. Finally, the wastes to be treated can be radioactive.
statiic leaching which simulates the action of a groundwater table, according to E. D. HARPE (IAEA, Atomic Energy Review, Vol. 9, No. 1, 1971); or the EPA dynamic test (US Federal Register, Dec. 18, 1978, part IV) consisting of stirring the solidified waste in water, possible correcting the pH and; then subjecting the leached products to analysis.
This example establishes the comparison between the known techniques of prior neutralization of the waste then addition of clay and hydraulic or calcium binder and the process according to the invention with the preliminary phase of reaction between the clay and waste.
the sample corresponding to 4.1 had solidified in 6 days, whereas that corresponding to 4.2 solidified in 9 days.
COD 1,680 mg/l for first sample, 1,800 mg/l for second sample.
This example shows the advantage, in some cases, of heating the clay dispersion in very acidic (or also very basic) waste.
Waste V discussed here was very acidic and came from a surface treatment shop. Its characteristics can be summarized as follows (amounts in mg/l):
the clay and waste mixture was heated for 8 hours at 180° C. It then sufficed to use 8 g of CaO to reach the pH of 7. Then, as above, 25 g of Portland cement were added.
the IAEA leaching test after 14 days, showed that there was practically no trace of the above cations, except for the first test (without heating) 0.05 mg/l of Zn (measurements made by atomic absorption).
a very alkaline waste VI was treated which consisted essentially of soda for cleaning sheet metal in an automobile plant.
the pH was 14, the COD: 50,000 mg/l, zinc concentration 187.5 mg/l, lead was 1.15 mg/l. and the phenol content was 70 mg/l.
This example shows neutralization of a strongly basic waste after its reaction with a clay, with the aid of a suspension of clay in an acidic waste.
a basic waste VII coming from a fine chemistry shop, with a pH of 12, containing 150 g/l of NaOH and exhibiting a COD of 80,000 mg/l, was used initially, 120 g of clay (with a base of chlorite, montmorillonite, quartz, illite), having a cation exchange capacity of 156, was dispersed in 100 g of waste with stirring at 1200 rpm.
This example is of the same type as the preceding one with different raw materials and conditions of use.
a mud waste IX coming from a waste treatment plant and exhibiting a pH of 13 was used initially.
the concentrations (in 10 3 mg/l) of the essential constituents were the following:
the clay raw material was polychromatic clay and the acidic waste III of example 3 above was used, under the following conditions:

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Ceramic Engineering (AREA)
Organic Chemistry (AREA)
Environmental & Geological Engineering (AREA)
Water Supply & Treatment (AREA)
Hydrology & Water Resources (AREA)
Chemical Kinetics & Catalysis (AREA)
Inorganic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Materials Engineering (AREA)
Structural Engineering (AREA)
Processing Of Solid Wastes (AREA)
Treatment Of Sludge (AREA)

US06/606,991 1983-05-03 1984-05-02 Process for solidification of strongly acidic or akaline liquid wastes Expired - Lifetime US4547290A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8307311A FR2545387B1 (fr)	1983-05-03	1983-05-03	Procede de solidification de dechets liquides de forte acidite ou alcalinite
FR8307311		1983-05-03

Publications (1)

Publication Number	Publication Date
US4547290A true US4547290A (en)	1985-10-15

Family

ID=9288505

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
US06/606,991 Expired - Lifetime US4547290A (en)	1983-05-03	1984-05-02	Process for solidification of strongly acidic or akaline liquid wastes

Country Status (6)

Country	Link
US (1)	US4547290A (fr)
EP (1)	EP0130854B1 (fr)
CA (1)	CA1220790A (fr)
DE (1)	DE3478996D1 (fr)
ES (1)	ES8502004A1 (fr)
FR (1)	FR2545387B1 (fr)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1987006758A1 (fr) *	1986-05-02	1987-11-05	Mandel Frederick S	Compositions et procede d'elimination et de nettoyage de matieres acides dangereuses deversees
EP0247241A1 (fr) *	1986-05-30	1987-12-02	Ashland Oil, Inc.	Inhibition de la lixiviation des métaux de catalyseur et d'absorbants et composés et méthodes à cet effet
US4762623A (en) *	1986-11-14	1988-08-09	Trident Engineering Associates, Inc.	Landfill composition and method of producing the same
US4865761A (en) *	1987-03-31	1989-09-12	Wormald, U.S. Inc.	Compositions and method for control and clean-up of hazardous acidic spills
US4950409A (en) *	1988-06-10	1990-08-21	Stanforth Robert R	Method for treating hazardous wastes
US5007590A (en) *	1990-01-23	1991-04-16	Itex Enterprises, Inc.	Apparatus and method for mixing solid or semi-solid wastes with additives
US5028272A (en) *	1982-02-08	1991-07-02	Ashland Oil, Inc.	Inhibiting leaching of metals from catalysts and sorbents and compositions and methods therefor
US5028010A (en) *	1989-12-18	1991-07-02	Itex Enterprises, Inc.	Apparatus for mixing solid or semi-solid wastes with additives
US5202033A (en) *	1991-09-30	1993-04-13	Rmt, Inc.	In situ method for decreasing heavy metal leaching from soil or waste
US5304710A (en) *	1993-02-18	1994-04-19	Envar Services, Inc.	Method of detoxification and stabilization of soils contaminated with chromium ore waste
US5377604A (en) *	1992-07-24	1995-01-03	Pichat; Philippe	Method for the obtaining of molded stabilized materials from wastes
US5422015A (en) *	1992-07-30	1995-06-06	Hondo Chemical, Inc.	Pathogenic waste treatment
US5502267A (en) *	1994-06-30	1996-03-26	Atlantic Richfield Company	Organic and metallic waste disposal in bentonite-water mixtures
US5505774A (en) *	1992-04-30	1996-04-09	Cerad Industries, Inc.	Continuous flow process for treating waste cellulosic fiber and paper mill sludge
US5599272A (en) *	1993-11-26	1997-02-04	Pichat; Philippe	Method for the manufacture of a solid by the mixing of hydrates of alkaline earth oxides and hydrates of heavy metal oxides
DE19541479C1 (de) *	1995-11-07	1997-03-13	Poligrat Holding Gmbh	Verfahren zur Aufbereitung von Phosphorsäure
US5639938A (en) *	1994-04-13	1997-06-17	Degussa Aktiengesellschaft	Method of preventing the formation of SO3 -mists from oleum
US5674176A (en) *	1995-02-16	1997-10-07	Entact, Inc.	Method for treatment of solid waste to minimize heavy metals
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DE19909817C2 (de) *	1998-09-30	2002-12-05	Fitr Ges Fuer Innovation Im Ti	Verfahren zum Verfestigen schadstoffhaltiger flüssiger bis pastöser Anfallstoffe
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US20040140268A1 (en) *	2001-03-29	2004-07-22	Tohru Oishi	Acidic-wastewater material and method of treating acidic wastewater
US20050234531A1 (en) *	2001-11-13	2005-10-20	Peyman Gholam A	Method to treat age-related macular degeneration
DE102007024703A1 (de) *	2007-05-25	2008-11-27	Infrasoil-Systems Gmbh	Verfahren zum Aufbereiten von kontaminiertem mineralischen Gewässersediment- oder Bodenmaterial
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AT400540B (de) *	1994-01-28	1996-01-25	Voest Alpine Stahl	Verfahren zur einbindung und verfestigung von abfallstoffen
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EP1020415B1 (fr) *	1998-09-25	2003-06-04	FITR Gesellschaft für Innovation im Tief- und Rohrleitungsbau Weimar m.b.H.	Procédé pour la solidification de déchets nocifs contaminés poussiéreux ou à gros grains
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US5599272A (en) *	1993-11-26	1997-02-04	Pichat; Philippe	Method for the manufacture of a solid by the mixing of hydrates of alkaline earth oxides and hydrates of heavy metal oxides
US5769938A (en) *	1993-12-28	1998-06-23	Kanegafuchi Kagaku Kogyo Kabushiki Kaisha	Waste-treating agent
US5639938A (en) *	1994-04-13	1997-06-17	Degussa Aktiengesellschaft	Method of preventing the formation of SO3 -mists from oleum
US5502267A (en) *	1994-06-30	1996-03-26	Atlantic Richfield Company	Organic and metallic waste disposal in bentonite-water mixtures
US5674176A (en) *	1995-02-16	1997-10-07	Entact, Inc.	Method for treatment of solid waste to minimize heavy metals
DE19541479C1 (de) *	1995-11-07	1997-03-13	Poligrat Holding Gmbh	Verfahren zur Aufbereitung von Phosphorsäure
US6264177B1 (en)	1995-11-07	2001-07-24	Poligrat Holding Gmbh	Method and apparatus for the conditioning of phosphoric acid
US6565756B2 (en)	1995-11-07	2003-05-20	Poligrat Holding Gmbh	Method for the conditioning of phosphoric acid
US5973220A (en) *	1996-09-24	1999-10-26	Jgc Corporation	Method of disposal of metallic aluminum-containing radioactive solid waste
DE19851256A1 (de) *	1998-09-25	2000-03-30	Forsch Tief Und Rohrleitungsba	Verfahren zum Immobilisieren und/oder Verfestigen schadstoffhaltiger, kontaminierter staubförmiger bis grobkörniger Anfallstoffe
DE19851256C2 (de) *	1998-09-25	2002-10-31	Fitr Ges Fuer Innovation Im Ti	Verfahren zum Verfestigen von insbesondere schadstoffhaltigen, staubförmigen bis grobkörnigen, nicht hydraulischen Anfallstoffen
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US6858142B2 (en) *	2000-09-13	2005-02-22	Rootzone Australia Pty Ltd.	Polluted water treatment system
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US20050234531A1 (en) *	2001-11-13	2005-10-20	Peyman Gholam A	Method to treat age-related macular degeneration
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Also Published As

Publication number	Publication date
FR2545387B1 (fr)	1987-01-09
ES531950A0 (es)	1984-12-16
DE3478996D1 (en)	1989-08-24
EP0130854A2 (fr)	1985-01-09
FR2545387A1 (fr)	1984-11-09
ES8502004A1 (es)	1984-12-16
CA1220790A (fr)	1987-04-21
EP0130854B1 (fr)	1989-07-19
EP0130854A3 (en)	1986-04-30

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